The built-in piezoelectric fields in group III-nitrides can act as road blocks on the way to maximizing the efficiency of opto-electronic devices. In order to overcome this limitation, a proper characterization of these fields is necessary. In this work nano-beam electron diffraction in scanning transmission electron microscopy mode has been used to simultaneously measure the strain state and t...

Bismuth telluride (Bi2Te3) two-dimensional (2D) nanosheets prepared by van der Waals epitaxy were successfully detached, transferred, and suspended for nano-indentation measurements to be performed on freestanding circular nanosheets. The Young's modulus acquired by fitting linear elastic behaviors of 26 samples (thickness: 5-14 nm) is only 11.7-25.7 GPa, significantly smaller than the bulk in-...

The use of thermosetting polymer composites and adhesives in structural applications such as electric cars is limited by the poor toughness due to its highly crosslinked structure. addition a small weight fraction silica nano-particles thermoset polymers effective means improving mechanical properties polymer, but not seen with micro-sized particles. This effect has been investigated using expe...

Heterogeneous Al–Si microstructure comprising of sub-micron-scale Al dendrites and nanoscale fibrous eutectic was fabricated by processing as-cast Al-20wt.%Si alloy using laser rapid solidification. In situ tension tests explored high tensile strength (∼600 MPa) ductility (∼10%) strain hardening rate (∼7 GPa). Microstructural characterization revealed the plastic co-deformation mechanisms betwe...

Arsenene has received considerable attention because of its unique optoelectronic and nanoelectronic properties. Nevertheless, the research on van der Waals (vdW) heterojunctions based arsenene just begun, which hinders application in fields. Here, we systemically predict stability electronic structures arsenene/WS2 vdW heterojunction first-principles calculations, considering stacking pattern,...

Flexible electronic devices offer the capability to integrate and adapt with human body. These devices are mountable on surfaces with various shapes, which allow us to attach them to clothes or directly onto the body. This paper suggests a facile fabrication strategy via electrospinning to develop a stretchable, and sensitive poly (vinylidene fluoride) nanofibrous strain sensor for human motion...

The proteome of the anaerobic organohalide-respiring bacterium Dehalococcoides mccartyi strain CBDB1 was analyzed by nano liquid chromatography coupled to mass spectrometry (LC-MS/MS). Two different preparation methods, (i) in-solution and (ii) in-gel proteolytic digestion were assessed to elucidate the core and the functional proteome of bacterial cultures grown in synthetic anaerobic medium w...